Just haven't gotten around to it. I applied for the Amex Gold Biz when the 75k offer was out on 2/29. Approved, no problem. When I applied last month for the Citi Biz, they wanted all this documentation, which was a hassle. I've been meaning to do some of it already (e.g., separate business bank account) so I'm getting that straight first. Then I should have all the paperwork to get biz cc's set up without any hassle.

So my next wave will probably be SPG Amex, Chase Ink Bold, and a BoA card (AS?).